Service-public.fr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:ff4j” not allowed here.
Attribute “xmlns:esi” not allowed here.
Element “img” is missing required attribute “src”.
Attribute “x-moz-errormessage” not allowed on element “input” at this point.
Bad value “opt-in” for attribute “type” on element “script”: Subtype missing.
Warnings:
Attribute with the local name “xmlns:ff4j” is not serializable as XML 1.0.
Attribute with the local name “xmlns:esi” is not serializable as XML 1.0.
The “type” attribute is unnecessary for JavaScript resources.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Attribute “aria-hidden” is unnecessary for elements that have attribute “hidden”.
The “main” role is unnecessary for element “main”.
The “listitem” role is unnecessary for element “li”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
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